Echoes of Eolis review
A focused desktop editor for changing Faxanadu maps, graphics, game data, and scripts.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Echoes of Eolis is a desktop editor for hacking Faxanadu, the NES game, aimed at people who want to change the game’s maps, graphics, data, or scripts. Its scope extends beyond map editing: it covers tilemaps, screen transitions, doors, sprites, stages, spawn points, building parameters, palettes, music mappings, and cinematic metadata and graphics. The project is open source and free, with support for Windows, macOS, and Linux; it is specifically designed for Faxanadu rather than general-purpose ROM editing.
The editor’s breadth within that single game is its main distinction. It can edit metatile tilesets, images, sprite graphics, and animation frames, and lets users disassemble and assemble interaction, behavior, and music scripts. World maps can be exported to PNG. Graphics can be exported to BMP for editing in an external image editor and then re-imported. This makes it relevant to projects that combine visual changes with game-data or script work, while users seeking only a narrow graphics utility may not need its wider editing surface.
Projects can be saved as patched ROMs, IPS patches, or XML files, giving creators multiple output formats for sharing or continuing work. Scripting and music tools are available through a GUI or command-line application. The description says the editor supports major regional ROM versions and an English translation hack. Precompiled builds are listed for Windows and macOS, while the project can be built from source on Windows, Linux, and macOS. Choose Echoes of Eolis for Faxanadu-specific editing across maps, graphics, and scripts; choose another tool if you need to work across multiple games.
Echoes of Eolis pros and cons
- Where it wins
- Edits maps, sprites, game data, cinematics, and scripts in one tool
- Exports patched ROMs, IPS patches, and XML project files
- Offers GUI and command-line tools on Windows, macOS, and Linux
- Where it doesn't
- Focused on Faxanadu rather than a broad range of games
- Graphic exports for external editing are BMP files
- Precompiled builds are listed for Windows and macOS
Echoes of Eolis fact sheet, pricing and score →
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